4. BIOS SETUP 4.4.1 Chip Configuration (Scroll down to see more items as shown here.) SDRAM Configuration [By SPD] This sets the optimal timings for items 2–4, depending on the memory mod- ules that you are using. Default setting is [By SPD], which configures items 2–4 by reading the contents in the SPD (Serial Presence Detect) device. The EEPROM on the memory module stores critical parameter information about the module, such as memory type, size, speed, voltage interface, and mod- ule banks. Configuration options: [User Define] [By SPD] 4.
BIOS SETUP Chip Configuration SDRAM CAS Latency This controls the latency between the SDRAM read command and the time that the data actually becomes available. NOTE: This field will only be displayed when SDRAM Configuration is set to [User Define]. SDRAM RAS Precharge Time This controls the idle clocks after issuing a precharge command to the SDRAM. NOTE: This field will only be displayed when SDRAM Con- figuration is set to [User Define]. SDRAM RAS to CAS Delay This controls the latency between the SDRAM active command and the read/write command. NOTE: This field will only be displayed when SDRAM Configuration is set to [User Define]. ASUS CUV4X-M User’s Manual 60